Home / 40,018.90-55,270.65-31,052.67

Finding the Fourth Proportional to 40,018.90, 55,270.65 and 31,052.67

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Solution

The fourth proportional to 40,018.90, 55,270.65 and 31,052.67 is: 42,887.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,018.90 : 55,270.65 = 31,052.67 : x
  2. Step 2: Convert to fraction form
    40,018.90/55,270.65 = 31,052.67/x
  3. Step 3: Cross multiply
    40,018.90x = 55,270.65 × 31,052.67
  4. Step 4: Simplify right side
    40,018.90x = 1,716,301,255.14
  5. Step 5: Solve for x
    x = 1,716,301,255.14/40,018.90
  6. Step 6: Final answer
    x = 42,887.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.